21 results about "Teeth missing" patented technology

A custom tool for forming a dental restoration in a mouth of a patient includes a one-piece mold body providing for a customized fit with at least one tooth of the patient, the one-piece mold body including an occlusal portion forming an occlusal surface corresponding with an occlusal surface of the tooth, a mesial proximal portion forming a mesial proximal surface corresponding with a mesial proximal surface of the tooth, and a distal proximal portion forming a distal proximal surface corresponding with a distal proximal surface of the tooth. The mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of the tooth. The occlusal portion, the mesial proximal portion, and the distal proximal portion are based on three-dimensional scan data of the mouth of the patient.

A custom tool for forming a dental restoration in a mouth of a patient includes a one-piece mold body providing for a customized fit with at least one tooth of the patient, the one-piece mold body including an occlusal portion forming an occlusal surface corresponding with an occlusal surface of the tooth, a mesial proximal portion forming a mesial proximal surface corresponding with a mesial proximal surface of the tooth, and a distal proximal portion forming a distal proximal surface corresponding with a distal proximal surface of the tooth. The mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of the tooth. The occlusal portion, the mesial proximal portion, and the distal proximal portion are based on three-dimensional scan data of the mouth of the patient.

The utility model relates to the technical field of breathing masks, and discloses a breathing mask adapted to people with tooth loss, which comprises a front cover, two first inflation and deflation valves mounted on the left side of the front end of the outer part of the front cover, and a second inflation and deflation valve mounted on the right side of the front end of the outer part of the front cover; the outer air bag strips are arranged on the left side and the right side of the rear end outside the front cover, and a silica gel gasket is arranged on one side, outside the outer air bag strips, of the rear end of the front cover; the inner ring is arranged on one side of the rear end of the interior of the front cover, inner cavities are formed in the two sides of the interior of the inner ring, inner air bag strips are installed on the outer sides of the interiors of the inner cavities, a connecting plate is arranged on one side of the rear end of the interior of each inner cavity, and an inner supporting frame is fixedly arranged on the side, located outside the inner ring, of the exterior of each connecting plate. According to the breathing mask, the air bags on the two sides are used for controlling the bulging degree to jack up the silica gel gasket to improve the sealing performance, and the breathing mask is suitable for people with tooth deficiency in cooperation with an outward supporting structure inside.

Ablation probe tips (108, 148, 320, 360) and physical and virtual stents (110) for use in tooth bud ablation procedures that result in tooth agenesis as well as tooth bud ablation methods are described herein.

The invention relates to the technical field of denture occlusal surface image processing, in particular to an intelligent occlusal vertical distance reconstruction device for an edentulous patient and an algorithm of the intelligent occlusal vertical distance reconstruction device, and the intelligent occlusal vertical distance reconstruction device comprises the intelligent occlusal vertical distance reconstruction device and the intelligent occlusal vertical distance reconstruction algorithm. The method is used for positioning the gingiva position of an edentulous jaw patient, and the purpose of reconstructing the occlusion vertical distance is achieved by matching the occlusion vertical distance before tooth loss with the bone face capacity before tooth loss through an intelligent occlusion vertical distance reconstruction algorithm; the method is easy to operate, high in practicability and very convenient to use, the occlusion vertical distance can be effectively reconstructed, the occlusion distance of all parts of the gingiva can be reconstructed in a regional mode, and the false tooth manufactured through the data has the function of supporting the anterior bone face of a patient without teeth.

The invention relates to a multi-modal missing tooth positioning method based on a random forest. The method comprises the following steps: S1, acquiring oral cavity CBCT image data; s2, obtaining a tooth number set and a missing tooth number set of the actual dentition; s3, determining an adjacent tooth of one missing tooth in the missing tooth number set through a preset first mode and a preset second mode, if the adjacent tooth meets a prediction condition, executing S4, otherwise, returning to S3 until all elements in the missing tooth number set are traversed; s4, calculating actual centroid coordinates of adjacent teeth; s5, obtaining a missing tooth centroid prediction model; s6, obtaining an actual centroid coordinate of the missing tooth; and S7, traversing all elements in the missing tooth number set. Compared with the prior art, the method has the advantages of coping with complex challenges caused by deletion of multiple teeth and the like.

The utility model provides a periodontal splint with a composite function, and belongs to the technical field of periodontal splints. Comprising a tooth body; the splint body is adhered to the tooth body; the two guide modules are respectively arranged at two ends of the tooth body and are used for assisting in positioning the splint body; the false teeth are arranged on the splint body. Personalized design can be carried out through oral cavity scanning data of a patient, it is ensured that the splint is perfectly attached to the specific tooth structure of the patient, tooth deficiency caused by periodontal diseases or other reasons can be filled through the arrangement of the false teeth, the chewing function of the patient is recovered, the attractiveness and pronunciation problems are improved, and the patient experience is improved. According to the periodontal splint, loose teeth and surrounding healthy teeth are connected through the splint body, the occlusal force can be dispersed, the burden of individual teeth is relieved, meanwhile, the periodontal splint fixes the teeth of a patient, displacement and extension of the teeth are limited, and the risk of food impaction is reduced.

The present disclosure relates to a restoration image generation method, apparatus, device, and storage medium. The method comprises: acquiring an image of a tooth to be restored; extracting a first a priori feature and a first decoding feature from the image of the tooth to be restored based on a trained tooth restoration model; and generating a restoration image based on the first a priori feature and the first decoding feature. The tooth restoration model is obtained by training a preset network based on images of missing teeth and sample restoration images. Through the above-described technical solution, the output restoration image can be made to conform to the actual tooth shape, thereby improving the accuracy of the restoration image and reducing the design cost of the restoration.

The invention relates to a monoblock pump common rail rapid pressure building method and device and a motor vehicle. Before a tooth missing signal is obtained, the obtained first tooth signal is a virtual 0 tooth, the obtained second tooth signal is a virtual 1 tooth, and so on; when the virtual N0 tooth is obtained, the monoblock pump is driven to operate according to the pre-calibrated driving duration; during the period that the monoblock pump continuously runs to the virtual 2N0 tooth, if no tooth missing signal is obtained and the pressure in the common rail pipe is increased, the odd number times of N0 serves as the driving moment of the monoblock pump, and the driving duration is N0 tooth signals; and if the pressure in the common rail pipe does not rise, the pressure of the common rail pipe is increased by taking even number times of N0 as the driving moment of the monoblock pump and the driving duration of N0 tooth signals.

The utility model discloses a false tooth structure easy to disassemble and assemble, which comprises a gum, a metal support arranged on one side surface of the gum, a rear tooth hook arranged at one end of the metal support, a false tooth arranged on the upper side of the gum, a front tooth hook arranged on the outer side of the metal support, and anti-skid rubber pads arranged on the inner sides of the rear tooth hook and the front tooth hook. The ends of the rear tooth hook and the front tooth hook are provided with hand clasping arc edges, and one side face of the middle of the metal support is provided with an anti-abrasion rubber pad. According to the utility model, the tooth bed is sleeved at the tooth missing position, and the front tooth hook and the rear tooth hook are hooked on the fixed teeth, so that the false tooth is effectively fixed and is convenient to mount, and the anti-skid rubber pads are arranged between the front tooth hook and the tooth contact surface as well as between the rear tooth hook and the tooth contact surface, so that the front tooth hook and the tooth contact surface as well as between the rear tooth hook and the tooth contact surface are subjected to effective anti-skid treatment. According to the denture disclosed by the utility model, by arranging the buckle arc edge, when the denture needs to be disassembled, a finger can be inserted into a gap between the buckle arc edge and the gum, so that the front tooth hook and the rear tooth hook can be conveniently dug out, and the denture is conveniently disassembled.

A system including a sensored ablation probe tip and a virtual stent, said sensored ablation probe tip for use in a tooth bud ablation procedure that results in tooth agenesis, said sensored ablation probe tip for use with an ablation probe unit. A system including a sensored ablation probe tip and a stent, said sensored ablation probe tip for use in a tooth bud ablation procedure that results in tooth agenesis, said sensored ablation probe tip for use with an ablation probe unit.

The invention provides a model reconstruction method and device for missing teeth and electronic equipment. The method comprises the following steps: acquiring oral cavity scanning data of a target user; performing single-tooth segmentation processing on the oral cavity scanning data to obtain a single-tooth segmentation result; wherein the single tooth segmentation result comprises a plurality of tooth instances and a tooth number of each tooth instance; determining a first tooth missed by the target user; according to a tooth instance of a second tooth associated with the first tooth, constructing neighborhood point cloud data of the first tooth; complementing target point cloud data of the first tooth according to the neighborhood point cloud data; and performing model reconstruction on the first tooth according to the target point cloud data.

A custom tool for forming a dental restoration in a mouth of a patient includes a first mold body providing for a customized fit with at least one tooth of the patient. The first mold body includes a portion corresponding with at least a first surface of the tooth and an interproximal portion corresponding with an interproximal surface of the tooth, the interproximal portion being of unitary construction. The first mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing a first portion of missing tooth structure of the tooth.

The utility model relates to the technical field of zipper tooth defect detection, and solves the problems that when the zipper tooth missing condition is detected and the zipper moves, limiting on the two sides is lacked, so that the moving track of the zipper deviates, and a detection instrument cannot scan the zipper tooth missing condition. The sprocket defect detection device comprises a base, supporting plates are axially symmetrically arranged on one side of the top of the base, a motor plate is arranged on one side of the top of each supporting plate, a driving motor is arranged on the top of each motor plate, and the output end of each driving motor is fixedly connected with a transmission mechanism; a limiting assembly used for limiting and guiding during sprocket defect detection is arranged at the top of the base and located on one side of the supporting plate, the limiting assembly comprises a fixing block arranged at the top of the base and located on one side of the supporting plate, and baffles are arranged on the edges of the two sides of the top of the fixing block in an axial symmetry mode. And a groove for two sides of the guide rail sprocket is formed in one side of the bottom of the baffle.

The utility model relates to a rod type precision accessory suitable for tooth loss at two ends, which belongs to the technical field of precision accessories and comprises a connecting plate main body and a false tooth main body, and a connecting assembly for positioning the false tooth main body is mounted between the opposite sides of the connecting plate main body and the false tooth main body. The connecting assembly comprises a fixing piece fixed on the outer side of the false tooth main body, a connecting piece fixed on one side, close to the connecting plate main body, of the fixing piece, a limiting column fixed on one side, far away from the false tooth main body, of the connecting piece, and a limiting groove formed in the top of the connecting plate main body; the connecting groove is formed in the side, close to the false tooth body, of the connecting plate body, the elastic piece is fixed to the right side of the connecting plate body, the clamping protrusion is fixed to the side of the front face of the elastic piece, and the clamping groove is formed in the side of the back face of the limiting column. The rod-type precise accessory suitable for tooth loss at two ends can be conveniently positioned and can be taken down comfortably at the same time.

Provided herein are methods and apparatuses for analyzing a patient's dental arches in order to generate a treatment plan for the dentition. In particular described herein are methods and apparatuses for analyzing a patient's dental arches when the patient is missing one or more teeth. Methods and apparatuses are provided to properly number the teeth of a patient's arches after a dental scan, including automatically detect missing teeth after a dental scan and estimating the dimensions of the missing teeth. Methods and apparatuses are provided to perform an analysis of the patient's arches that uses the estimated dimensions of the missing teeth. Methods and apparatuses for designing and manufacturing the aligner are also provided.

The invention discloses an electric bucket tooth missing detection method, a memory and a processor, and the electric bucket tooth missing detection method based on an infrared visual translation invariant feature comprises the steps: obtaining central position coordinates of bucket teeth in two continuous frames of infrared images by using a neural network model according to a spatial structure relationship between a stability feature region and a bucket tooth region; gray level distribution of bucket tooth areas in two continuous frames of infrared images is obtained; if the gray levels of the bucket tooth areas in the two continuous frames of infrared images change, it is judged that the bucket teeth of the electric bucket are missing. Therefore, the center positions of the bucket teeth in the two continuous frames of infrared images are obtained, then the gray distribution of the bucket tooth area is obtained according to the center positions of the bucket teeth, and the gray distribution of the bucket tooth area in the two continuous frames of infrared images is compared, so that whether the bucket teeth of the electric bucket are missing or not is judged, detection on whether the bucket teeth are missing or not is more accurate and convenient, and the detection efficiency is improved. The reliability and the stability of the electric bucket tooth missing detection method based on the infrared visual translation invariant feature can be improved.

This utility model relates to the field of dental technology. An occlusal reconstruction brace with a pressure post and spring retainer includes a first brace and a second brace that cooperate with each other. The first brace has a pressure post protruding towards the second brace, and the second brace has a clearance hole for the pressure post, which is used to allow elongated teeth to protrude. A spring retainer is symmetrically mounted on the first brace adjacent to the pressure post, allowing for the detachable installation of a spring. The spring retainer is used to detachably connect the spring, which is used to clamp between the tilted tooth and the spring retainer. The combination of the pressure post and spring retainer in this utility model uses the spring's elasticity to generate a straightening force on the tilted teeth on both sides of the missing tooth, and the pressure post applies longitudinal force to the elongated tooth at the site of the missing tooth, thus depressing the elongated tooth.

1. The name of the design product: digital planting replacement body. 2. The use of the design product: the design product is used for patients with tooth loss, digital implant restoration parts. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application provides a method and device for assisting in positioning a tooth implant site based on a deep learning method, a computer readable storage medium, an electronic device and a surgical robot system. The method for assisting in positioning the tooth implant site comprises: performing dimension reduction processing on input image data; scaling the image after the dimension reduction processing to obtain a standardized two-dimensional image; using a preset tooth implant site positioning information extraction model to process the input standardized two-dimensional image file to obtain all tooth sites and tooth loss condition information of each tooth site. Thus, the tooth loss tooth site in all tooth sites can be identified, and all tooth sites with teeth, tooth sites with possible tooth loss or tooth sites with possible wisdom tooth growth are comprehensively predicted, thereby solving the problem that multiple tooth sites may be confused with each other in the traditional method and improving the accuracy. Because the input size can be arbitrarily adjusted, the demand for hardware devices is greatly reduced and the prediction speed is improved.

The utility model provides a multifunctional occlusion positioning device which comprises a scanning rod used for being installed on an edentulous position of a patient; the occlusion positioning piece is arranged at one end of the scanning rod, and one end, deviating from the scanning rod, of the occlusion positioning piece is provided with an occlusion matching surface; and the outline of the occlusal matching surface is used for being matched with the occlusal surface of an alignment tooth on one side opposite to the tooth missing position. The problem that in the prior art, scanned three-dimensional data cannot reflect the occlusion relation of upper and lower jaw alignment teeth, so that the occlusion relation of a subsequently manufactured real dental cast is unstable, and the quality of a prosthesis in the oral cavity of a patient is affected is solved.